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December 21, 2014

Homework Help: Physics - rojectile Motion (check pls)

Posted by Shaila on Saturday, August 21, 2010 at 12:06pm.

Imagine that you are solving a problem in projectile motion in which you are asked to find the time at which a projectile reaches a certain vertical position. when you solve the problem you find out two different positive values for time that both satisfy the condition of the prolem. Explain how this result is not only possible but also logical.

Ans: The result is not only possible but also logical becasue if a projectile motion lands at the same ground level as it was launched and air friction is neglected then the trajectory is a symmetrical parabola, hence there will be two positive values of time one when the object reaches towards the maximum height and the other being the when it is reaching for the ground.

Is this answer correct? or am i missing something, i am 75% sure of it only!

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